Calculation of Antenna Array Far Field Impulse Response using the Finite-Difference Time-Domain Method

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Authors
  1. Wu, C.
  2. Lee, J.
Corporate Authors
Defence R&D Canada - Ottawa, Ottawa ONT (CAN)
Abstract
The waveform in the radiation field of a radar antenna can be obtained by using the convolution of the transmitted signal and the antenna far-field impulse response (AFFIR). In this paper, the finite-difference time-domain (FDTD) method is applied to calculate the AFFIR of an X-band 54-element waveguide slot array at different radiation angles using the excitation of a wideband Gaussian pulse. To demonstrate the usage of the far-field impulse response, the waveforms in the radiation field of a narrowband Gaussianpulse are calculated at three different radiation angles by the convolution of the pulse and the waveguide slot-array AFFIR.
Report Number
DRDC-OTTAWA-SL-2005-121 — Scientific Literature
Date of publication
01 Nov 2004
Number of Pages
7
Reprinted from
Microwave and Optical Technology Letters, vol. 48, no. 3, 2006, p 424-430
DSTKIM No
CA027264
CANDIS No
525323
Format(s):
Hardcopy

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